<p>3/4x 21 ITM SDS Max X-Cutter Hammer Drill Bit - International Tool Manufacturing.</p> <ul><li>Rotary Hammer Drill</li> <br /><li> Industrial Quality</li> <br /><li> Special Tungsten Carbide Tip</li> <br /><li> Copper / Silver Brazing</li> <br /><li> Fastest Dust Removal</li> <br /><li> Fastest Drilling Speeds</li> <br /><li> Heat Treated Body</li> <br /><li> Clean Round Holes</li> <br /><li> Less Vibration</li> <br /><li> Polished Finish</li> <br /><li> ANSI Specification</li></ul>